body {
  background: azure;
}

h1 {
  text-align: center;
  color: darkcyan;
}

p {
  font-size: 18px;
}

a {
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

img {
  width: 600px;
  height: auto;
}

div {
  background: lightgrey;
}